Abstract: A pump diaphragm for a diaphragm pump for conveying a fluid includes a solid core with a connection device for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body made of rubber having a peripheral clamping edge. The solid core is embedded at least partially in the diaphragm body and the solid core is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.

Abstract: A disc pump includes a pump body having a cavity for containing a fluid. The disc pump also includes an actuator adapted to hold an electrostatic charge to cause an oscillatory motion at a drive frequency. The disc pump further includes a conductive plate positioned to face the actuator outside of the cavity and adapted to provide an electric field of reversible polarity, the conductive plate being electrically associated with the actuator to cause the actuator to oscillate at the drive frequency in response to reversing the polarity of the electric field. The disc pump further includes a valve disposed in at least one of a first aperture and a second aperture in the pump body. The oscillation of the actuator at the drive frequency causes fluid flow through the first aperture and the second aperture when in use.

Abstract: A fluid system is disclosed and includes a fluid active region, a fluid channel, a convergence chamber, plural valves and plural sensors. The fluid active region includes a fluid-guiding unit for transporting fluid and discharging the fluid through an outlet aperture. The fluid channel is in communication with the outlet aperture and includes plural branch channels. The fluid discharged from the fluid active region is split by the branch channels, so that a required amount of the fluid to be transported is achieved. The convergence chamber is in communication with the fluid channel for allowing the fluid to be accumulated therein. Each valve is disposed in the corresponding branch channel. The fluid is discharged out through the corresponding branch channel according to an open/closed state of the valve disposed therein. Each sensor is disposed in the corresponding branch channel for measuring a specific detecting content in the fluid.

Abstract: A valve includes a first plate (10) having a first through hole (100), a second plate (20) having a second through hole (210) that does not face the first through hole (100), a valve chamber (55) formed by being surrounded by the first plate (10) and the second plate (20), and a valve body (30) disposed in the valve chamber (55) and having a third through hole (300) that does not face the first through hole (100) and that faces the second through hole (200), the valve body (30) being movable up and down between the first plate (10) and the second plate (20). In addition, a second opening area of the second through hole (210) is smaller than a third opening area of the third through hole (300), and the second through hole (210) is located in the third through hole (300) when viewed from a front.

Abstract: A pump station arrangement for removing harmful fluids from wastewater and a method for removing harmful fluids from wastewater in such a pump station arrangement. The pump station arrangement includes a pre-chamber, a pump sump, a recirculation channel extending from the pump sump to the pre-chamber, and a gas sensor arranged in the pump sump and configured to measure the content of harmful fluids in the form of gas in the pump sump. The pump station arrangement is configured to recirculate the wastewater via the recirculation channel from the pump sump to the pre-chamber if the measured content of harmful fluids in the form of gas in the pump sump exceed a predetermined value. Also disclosed is.

Abstract: A pneumatic pump is provided including a pressure vessel having a lower transfer port and an upper ventilation port; a transfer assembly communicating with said transfer port and including an inlet for pumpable material, and a delivery outlet, one or both of said inlet and said outlet having a valve facilitating selective flow therethrough; a venturi assembly having a suction side communicating with said ventilation port and a closable exhaust vent selectively operable to cycle said ventilation port between a suction phase and a pressurized phase; and a controller adapted to selectively close the exhaust vent. A rotatable valve apparatus is further provided. Also provide is a pneumatic pump fitted with a rotatable valve apparatus.

Abstract: In one aspect, valve seats are described herein having structure and design addressing degradative stresses encountered by valve seats during installation and operation in fluid ends. In some embodiments, a valve seat for use in a fluid end comprises a first section for insertion into a fluid passageway of the fluid end and a second section extending longitudinally from the first section, the second section has an outer diameter greater than the outer diameter of the first section. The second section also comprises a frusto-conical valve mating surface, wherein the second section is encased in a ring imparting a compressive stress condition to the second section.

Abstract: In one aspect, valve seats are described herein having structure and design addressing degradative stresses encountered by the seats during installation and operation in fluid ends. In some embodiments, a valve seat for use in a fluid end comprises a first section for insertion into a fluid passageway of the fluid end and a second section extending longitudinally from the first section, the second section comprising a frusto-conical valve mating surface, wherein the second section is encased in a ring imparting a compressive stress condition to the second section.

Abstract: According to an embodiment, a pump includes a power end, and a fluid end. A sliding plate extends from the power end, and a distal end of the sliding plate has engaging structure. The fluid end has complementary engaging structure for slidably mating with the engaging structure as the fluid end is raised or lowered relative to the power end. A locking plate is provided for preventing disengagement of the complementary engaging structure and the engaging structure.

Abstract: A fluid delivery system having at least one fluid storage device and a pump with at least one fluid driver with a flow-through shaft that has a through-passage. The pump includes a casing, and at least one fluid driver having a prime mover and at least one fluid displacement member. A shaft of the prime mover and/or a shaft of the fluid displacement member and/or a common shaft of the prime mover/fluid displacement member (depending on the configuration of the pump) is a flow-through shaft with a through-passage configuration that allows fluid communication between at least one port of the pump and the at least one fluid storage device.

Abstract: Provided is a variable capacity pump where ease of control can be improved. A variable capacity pump includes a control chamber and a control mechanism. The control chamber is disposed between a pump accommodating chamber and a movable member, and the volume of the control chamber is variable with the movement of the movable member. Working oil discharged from a discharge portion is introduced into the control chamber. The control mechanism includes a spool, a biasing member, and a solenoid. The spool is provided in a passage, and is configured to control introduction of working oil into the control chamber by moving in a cylindrical portion. The spool is biased to one side in an axial direction by a pressure of working oil introduced into the cylindrical portion from the discharge portion. The biasing member biases the spool to an opposite side in the axial direction.

Abstract: A rotor-chamber wall of a motor-driven Roots pump has a suction port and a discharge port. The side on which the discharge port is located with respect to a plane that includes both the rotational axis of a drive shaft and the rotational axis of a driven shaft is a first side. A first partition wall defines a gear chamber and has a first recess on the first side. A second partition wall defines the gear chamber and has a second recess. The first partition wall has a first oil supply passage that is configured to supply oil from the first recess to a first seal accommodating recess. The second partition wall has a second and a third oil supply passages. The second and the third oil supply passages are configured to supply oil from the second recess to a second and a third seal accommodating recesses, respectively.

Abstract: Disclosed is a trochoid lubricant supply device that is configured to connect to a rotational shaft. A connector of the lubricant supply device is configured to reduce an oil leakage amount of lubricant, and is configured to insert to a lower portion of a rotational shaft. The connector includes: a rotator mounting member inserted into and fixed to the rotator of the lubricant supply device; a penetrating member that penetrates a fixer of the lubricant supply device; an enlarged diameter extending radially outwards from the penetrating member outside the fixer; and a rotational shaft mounting member extending axially in the diameter enlarged member and is fastened to the rotational shaft. Further, the lubricant supply device of the present disclosure can supply the oil regardless of a rotation direction of the rotational shaft by supplying the oil by a space pivoting about the rotational center of the rotator.

Abstract: A compressor pump structure comprises a rotating shaft, a piston, a cylinder, a cylinder sleeve, a lower flange and an upper flange, the central axis of the rotating shaft being arranged eccentrically with respect to the central axis of the cylinder, the rotating shaft being slidably arranged in the piston, the piston being movably arranged in the cylinder and forming two volume-variable chambers with the cylinder, the piston comprising two first sliding planes arranged opposite one another and two first contacting planes arranged opposite one another, the first contacting plane on the upper side being in sealing contact with the upper flange, and the first contacting plane on the lower side being in sealing contact with the lower flange. Also disclosed is a compressor with the compressor pump structure.

Abstract: A motor vehicle vacuum pump includes a pump housing which encloses a pump chamber, a pump rotor bearing, a pump rotor, a coupling unit rotationally fixed to the pump rotor which connects the pump rotor to a drive shaft, and a lubricant supply assembly which lubricates the pump chamber, the pump rotor bearing and/or the coupling unit. The pump housing has a lubricant inlet opening. The pump rotor is arranged in the pump chamber via the pump rotor bearing. The lubricant supply assembly includes a lubricant outlet opening and a lubricant supply duct which is arranged in the pump housing so that a lubricant is pumpable from the lubricant inlet opening towards the pump chamber, the pump rotor bearing and/or the coupling unit, to the lubricant outlet opening. A seal element is arranged in a region of, and a filter element is arranged in, the lubricant inlet opening, respectively.

Abstract: A pump assembly is provided. The pump assembly includes a stator assembly and a piston assembly. The stator assembly includes a rotary winding and a linear winding. The piston assembly is positioned within the stator assembly. The piston assembly translates along a lengthwise axis of the stator assembly and rotates about the lengthwise axis of the stator assembly to create a pumping action.

Abstract: A micro hydraulic suspension mechanical pump with a volute, an upper cover, an impeller, a brushless motor, a waterproof sleeve and the water lubrication spiral groove thrust bearings, in which a water inlet channel and a water outlet channel are provided on the volute, and a middle water inlet hole is formed on the upper cover. The brushless motor includes a motor shell, a coil, a magnetic steel rotor, a waterproof sleeve, a rotor sleeve and a rotor rotating shaft; and above and below the magnetic steel rotor are respectively provided one water lubrication spiral groove thrust bearing. A liquid film can be formed between the stationary ring and the rotating ring to enable the magnetic steel rotor to be suspended, and a liquid film can also be formed between the outer wall of the rotor sleeve and the inner wall of the waterproof sleeve.

Abstract: An electric compressor includes: a rotary shaft to which a compressor impeller is attached; a stator portion which is disposed around the rotary shaft; and a motor housing which accommodates the stator portion. The motor housing includes an inner housing which includes a first cylindrical portion surrounding and holding the stator portion and an outer housing which includes a second cylindrical portion surrounding and holding the first cylindrical portion of the inner housing. Between an outer surface of the inner housing and an inner surface of the outer housing, a cooling jacket portion is formed in a part of a circumferential direction about the rotary shaft. The inner housing includes a first end wall portion which is formed to be continuous to the first cylindrical portion and extends inward in relation to an outer peripheral portion of the stator portion in a radial direction of the rotary shaft.

Abstract: The present invention relates to a suction device for a hood, comprising an impeller, an electric motor that drives said impeller, a volute that houses inside the electric motor and the impeller, a capacitor, and a connector electrically connected to the capacitor for supplying power to the electric motor; the volute comprises a first semi-shell and a second semi-shell joined with each other so as to constitute the structure of the volute surrounding the impeller; the capacitor is housed in a first compartment formed in the first semi-shell, and the connector is housed in a second compartment formed in the second semi-shell; the first compartment and the second compartment are adjacent to each other in the volute. The present invention further relates to an associated range hood.

Abstract: A compressor bleed port apparatus includes: a compressor shroud which defines a boundary between a primary flowpath and a plenum; a bleed port including one or more apertures passing through the compressor shroud, each of the one or more apertures having an inlet communicating with the primary flowpath and an outlet communicating with the plenum, and extending along a respective centerline. Each of the one or more apertures is bounded by sidewalls, and includes a diffuser section in which the sidewalls diverge from each other in a downstream direction; A diffusing angle between the sidewalls varies over the length of the diffuser section.

Abstract: The axial bearing arrangement comprises a first axial bearing plate (12) and a second axial bearing plate (13) each having an annular ring shape, the first axial bearing plate (12) having a first surface (12.1) axially facing the second axial bearing plate (13) and a second surface (12.2) opposite to the respective first surface (12.1), the second axial bearing plate (13) having a first surface (13.1) axially facing the first axial bearing plate (12) and a second surface (13.2) opposite to the respective first surface (13.1); a spacer ring (14) clamped between the first surfaces (12.1, 13.1) of the first and second axial bearing plates (12, 13), the spacer ring (14) defining an axial distance between the first and second axial bearing plates (12, 13); and a bearing sleeve (15) abutting the second surface (13.2) of the second axial bearing plate (13) and being secured to a compressor block (16).

Abstract: A system having a variable diameter impeller device that is operable for reducing an energy consumption of a rotating fluid or gas pump by increasing said impeller diameter as a speed of said rotating fluid or gas pump increases and decreasing the impeller diameter as the speed decreases. An extendable vane mechanism is configured to move along an elongated curved or sloping slot, said movement along the elongated curved or sloping slot is operable for increasing and decreasing a diameter of the impeller device. A spring mechanism having a first end and a second end extends and retracts to dynamically increase or decrease a diameter of the impeller device.

Abstract: A blower device includes a housing including an intake chamber, an accommodation chamber communicating with the intake chamber, and an exhaust port, a motor provided in the accommodation chamber and including a coil, a fan provided on a rotating shaft of the motor, a sealing member configured to seal up the intake chamber, and a flow path of the air which is introduced into a gap between a first surface of the fan and the housing, is returned from a flow path hole provided in the housing and communicating with the intake chamber to an opening, and is introduced to a second surface of the fan opposed to the first surface by an air-blowing operation of the fan.

Abstract: A trailing edge of a serrated fan blade includes a notch array including first, second, and third notches in a row. The first notch and the second notch define a first serration therebetween, and the second notch and the third notch define a second serration therebetween. The second notch has a largest or a smallest depth among depths of the first to third notches, and the first and second serrations each have an asymmetrical shape.

Abstract: A diffuser for a compressor includes a body having a ring shape and including: a fluid inflow face extending along a radial direction of the diffuser; and a rim bent from the fluid inflow face; main vanes formed on the fluid inflow face and the rim to guide fluid; and at least one splitter vane disposed between adjacent main vanes of the main vanes to guide the fluid.

Abstract: A handheld blower includes a fan for generating an air flow, a motor for driving the fan to rotate about a central axis, a battery pack for supplying power to the motor, an air duct portion including an air duct, the air duct extending long the central axis, a coupling portion for coupling with the battery pack, and a connection portion for connecting the air duct portion with the coupling portion. The fan is received in the air duct. The air duct includes an air duct inlet and an air duct outlet which are respectively located at the two ends of the air duct. The air duct inlet is located between the air duct outlet and the coupling portion. The connection portion is provided with an air intake space located between the air duct inlet and the coupling portion. The air intake space is opened in a radial direction of the central axis.

Abstract: A blower device includes a housing including an intake chamber configured to take in external air from an intake port, an accommodation chamber communicating with the intake chamber through an opening, and an exhaust port configured to discharge the air inside the accommodation chamber to the outside, a motor provided in the accommodation chamber of the housing and including a coil, a fan provided on a rotating shaft of the motor and configured to introduce the air inside the intake chamber from the opening into the accommodation chamber and blow the air from the accommodation chamber to the exhaust port, a sealing member configured to seal up the intake chamber, and a circuit board which is provided above the sealing member and on which circuit components configured to drive the motor are arranged.

Abstract: A turbocharger includes a compressor housing, a compressor impeller, a diffuser passage, a diffuser surface, a cooling passage, and a return passage. The diffuser surface is a part of the compressor housing and is a wall surface of the compressor housing that faces the diffuser passage. A part of an intake gas returns through the return passage to an upstream side of the compressor impeller in a flow direction of the intake gas in the compressor housing. A passage forming member is attached to the compressor housing, and cooperates with the compressor housing to form the return passage. The compressor housing has an insertion recess that has a circular shape. The insertion recess receives an insertion portion that is a part of the passage forming member and has a cylindrical shape. The cooling passage is formed by the insertion recess and the insertion portion inserted into the insertion recess.

Abstract: An impeller in embodiments, as an example, includes a base plate, and a shroud including a plurality of blade members fixed to the base plate, wherein a plurality of the blade members are provided so as to stand and are arranged with intervals in a circumferential direction on a face portion of the shroud, the face portion facing the base plate, a plurality of groove portions for mounting each of a plurality of the blade members are formed on the base plate, and a plurality of the groove portions are configured to mount each of the blade members included in a plurality of kinds of the shrouds in which at least one of an arrangement of the blade members and a number of the blade members is different from each other.

Abstract: A blower machine may include a blower unit configured to blow air; and an air passage pipe connected to an air duct of the blower unit. The air passage pipe may include an elbow pipe arranged on a proximal end side of the air passage pipe which is connected to the air duct; and a straight pipe extending straight and arranged on a distal end side of the air passage pipe than the elbow pipe. A first silencer pipe portion may be arranged at a proximal end portion of the straight pipe which is arranged on the distal end side of the air passage pipe than the elbow pipe, and the first silencer pipe portion may be provided with a sound absorbing material on an inner surface of the first silencer pipe.

Abstract: A fan includes a frame, a first impeller, a motor, a base, and a noise silencer. The frame is provided with a flow channel for air to flow through. The first impeller is disposed in the frame. The motor connects with and drives the first impeller to rotate. The base is disposed in the frame and supports the motor. The noise silencer is located adjacent to the flow channel. The noise silencer includes at least one hollow chamber, and the hollow chamber has at least one hole communicating with the flow channel.

Abstract: A stage of a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a row of flow directing components circumferentially disposed about a centerline axis and at least one flow directing component of the row having at least one design characteristic that is dissimilar from a corresponding design characteristic of at least one other flow directing component of the row.

Abstract: A turbocharger includes a compressor housing having an accommodation depression, a return passage, a ring member, and a covering member mounted to the compressor housing. The return passage has an inlet, an outlet, and a communication passage through which the inlet is connected to the outlet. A bottom surface of the accommodation depression has an inlet forming surface that cooperates with the ring member to form the inlet. The communication passage is formed between an inner peripheral surface of the accommodation depression and an outer peripheral surface of the ring member. The covering member has a falling prevention portion and an outlet forming surface. The outlet forming surface cooperates with the ring member to form the outlet. The falling prevention portion is located between the ring member and the outlet forming surface, and contacts the ring member to prevent the ring member from falling off the accommodation depression.

Abstract: The invention relates to a hydraulic tank (10) for storing a hydraulic liquid, comprising a one-piece tank housing (12) which forms a plastic hollow body and is manufactured by a rotational moulding process, wherein the tank housing (12) comprises at least one connection opening (92, 94, 126) at which is arranged a connection element (100, 110, 132) that is releasably connectable to a hydraulic conduit. In order to enable the hydraulic tank to be more cost-effective to produce, the connection element (100, 110, 132) comprises a plastic body which is manufactured by an injection moulding process and is welded together with the tank housing (12). Furthermore, a method for manufacturing a hydraulic tank (10) is proposed.

Abstract: An actuation pressure to actuate one or more hydraulic actuators may be determined based on a load on the one or more hydraulic actuators of a robotic device. Based on the determined actuation pressure, a pressure rail from among a set of pressure rails at respective pressures may be selected. One or more valves may connect the selected pressure rail to a metering valve. The hydraulic drive system may operate in a discrete mode in which the metering valve opens such that hydraulic fluid flows from the selected pressure rail through the metering valve to the one or more hydraulic actuators at approximately the supply pressure. Responsive to a control state of the robotic device, the hydraulic drive system may operate in a continuous mode in which the metering valve throttles the hydraulic fluid such that the supply pressure is reduced to the determined actuation pressure.

Abstract: A modular electrohydraulic actuator including an electric motor, a hydraulic pump driven by the electric motor, and a hydraulic actuator in fluid communication with the hydraulic pump. The hydraulic actuator includes a hydraulic cylinder supporting a pressure sleeve in which a piston and rod is adapted for reciprocating motion in response to a supply of pressurized fluid to a first side or a second side of the piston, wherein at least one of the electric motor, hydraulic pump, hydraulic cylinder, piston, piston rod or the pressure sleeve supported in the hydraulic cylinder is selectively removable and replaceable with a different component to vary at least one performance characteristic of the electrohydraulic actuator.

Abstract: A hydrostatic actuator for a motor vehicle includes a housing, a piston, and a seal. The piston has a lateral surface and is arranged within the housing in a longitudinally movable manner. The seal is inserted between the lateral surface and the housing in a fluid-tight manner. The seal has a securing region that rests in a statically sealing manner against a one of the housing or the piston, and a sealing lip region. The sealing lip region includes a first sealing lip for dynamically sealing to the other one of the housing or the piston when pressure in an external space is greater than pressure in an internal space, and a second sealing lip for dynamically sealing to the other one of the housing or the piston when pressure in an external space is less than pressure in an internal space.

Abstract: Methods described herein provide a way to reduce or eliminate drag and adhesion of a substance flowing over a surface by creating a vapor cushion via evaporation of a phase-changing material of or on the surface or encapsulated within textures of the surface. The vapor cushion causes the flowing substance to be suspended over the surface, greatly reducing friction, drag, and adhesion between the flowing substance and the surface. The temperature of the flowing substance is above the sublimation point and/or melting point of the phase-changing material. The phase-changing material undergoes a phase change (evaporation or sublimation) upon contact with the flowing substance due to local heat transfer from the flowing substance to the material, generating a vapor cushion between the solid or liquid material and the flowing substance.

Abstract: The invention relates to a spring element for a device for compensating for tolerances between a first and a second component, characterized by at least one spring arm which has two opposite end regions along its longitudinal direction, wherein at least one of the end regions has a greater distance from a longitudinal central axis of the spring element than an intermediate section of the spring arm between the end regions, and wherein at least one of the end regions forms a corner which protrudes radially outwards.

Abstract: There is provided a component joining structure that includes: a resin component; a metal tip that is provided in the resin component by insert molding, and that includes protruding portions that protrude from the resin component; and a metal component that is spot welded to the protruding portions, and that is joined to the resin component by an adhesive agent that is provided in gaps formed, by the protruding portions, between the resin component and the metal component.

Abstract: A connector for insertion into two connectable items consists of two parts with inter-engaging features, for instance, a spigot and socket, which may be latched together under the force applied by a pivoting latch arm in one part with a tensionable clamping arm engaging the other part to clamp the two parts together when the latch arm is homed.

Abstract: The invention relates to a semi-finished product for producing a three-dimensional component having a metallic base plate which has at least one predefined bending line, characterized in that functional elements are provided on the base plate in the region of a bending line, on both sides of the bending line, said functional elements making contact with one another when the base plate is reshaped along the bending line and permitting a connection.

Abstract: An inner housing defines a pin retaining receptacle elongated in an X-direction with entry ramps extending parallel to the X-direction. The inner housing is slidably coupled to an outer housing and extends into an interior thereof. A plurality of centering blades extend into the interior and between the inner and outer housings to locate the pin retaining receptacle in a central position within the interior in a Y-direction prior to insertion of the pin into the pin retention receptacle. The centering blades are movable in the Y-direction to permit the pin retaining receptacle of the inner housing to move to a non-central position relative to the housing in the Y-direction as a result of the inner housing moving the centering blades in response to the pin engaging the entry ramps during insertion of the pin into the pin receiving receptacle. Associated methods are also disclosed.

Abstract: Methods of forming a metallic-ceramic brazed joint are disclosed herein. The method of forming the brazed joint includes deoxidizing the surface of metallic components, assembling the joint, heating the joint to fuse the joint components, and cooling the joint. In certain embodiments, the brazed joint includes a conformal layer. In further embodiments, the brazed joint has features in order to reduce stress concentrations within the joint.

Abstract: Detachable fastening system for two formwork beams, an upper beam, a lower beam, a device for connecting the upper beam to the lower beam. Said device comprises a resilient one-piece structure having two curved arms which connect zones intended to press one of said beams in support zones and zones intended to be fastened to the other beam, the system having connection means which connect the device to said beam such that it cannot be lost, and said device having the ability to slide relative to the beam to which it is fastened, the system having means for increasing the friction between the lower beam and the upper beam.

Abstract: A nut is caulked and fixed to a plate material and a protrusion at an end of a collar is press-fitted into a recessed groove generated on the opposite surface of the plate material at the time of the caulking fixation, thereby fixing the nut and the collar to both surfaces of the plate material, respectively. The plate material is, for example, a metal panel, and the nut is, for example, a pierce nut. Since the collar is caulked and fixed, thermal strain is not generated.

Abstract: A fixing device (1) for attaching an item to a suspended plasterboard wall or ceiling (16). The fixing device includes a plug portion (4) for securing in a hole (14) in the suspended plasterboard wall or ceiling. The plug portion includes an aperture (6) for receiving a fastener that extends and a longitudinal backplate (2). The longitudinal backplate is attached to and projects from diametrically opposite sides of the plug portion and arranged in use to engage with the rear face of the suspended plasterboard wall or ceiling when the plug portion is secured in the hole. The perimeter of the cross section of the plug portion has a minimum bounding circle having a first diameter. The perimeter of the cross section of the fixing device through the plug portion has a minimum bounding circle having a second diameter less than or equal to the first diameter.

Abstract: A layered nut (10) comprises a plurality of thin nuts (12) formed with through-holes (16) having almost the same diameter. On the inner peripheral surface of each thin nut (12), a plurality of screw threads (18, 38) are formed at predetermined angular spacing so as to protrude toward the inside of the through-hole (16). In this case, the thin nuts (12) are layered along the direction of the central axis (14) so that the through-holes (16) become approximately coaxial. The outer peripheral surfaces of the layered thin nuts (12) are subjected to laser welding or the like, thereby joining the thin nuts (12) and completing the layered nut (10).

Abstract: The invention relates to a wheel nut (10) for securing a wheel (12) to a threaded stud or bolt (14) of a vehicle (100), wherein the wheel nut comprises: a torque receiving section (16) with an external tool interface (18); and a load bearing section (22) including a threaded internal bore (24) adapted to mate with the threaded stud or bolt (14), a first portion (26) adapted to contact a washer (28), and a second portion (30) axially arranged between the first portion (26) and the torque receiving section (16). The present invention also relates to a vehicle comprising at least one such wheel nut.

Abstract: A Bowden cable end piece that facilitates the connection of a Bowden cable to an operating mechanism is disclosed. The end piece includes an elongated frame having a receptacle configured to receive a sheath of a Bowden cable and guide a core of a Bowden cable. The frame has a barrel guide configured to receive a barrel formed on an end of the core. An attachment member on a first end of the frame provides a holding connection with the operating mechanism in an insertion position and an end position. A mounting spring on a second end of the frame has an abutment region configured to abut a mounting surface on a support structure when the Bowden cable end piece is installed in the end position. The Bowden cable end piece can be, in the installed state, pressably attached by the mounting spring in the end position.